| US 11,811,507 B1 | ||
| Adaptive digital radio frequency memory for coherent response synthesis | ||
| Austin T. Rios, Brookline, NH (US); Marc A. Fisher, Amherst, NH (US); Ryan Harding, Hudson, NH (US); Patrick R. Kane, Manchester, NH (US); and Ryan A. Walsh, Portsmouth, NH (US) | ||
| Assigned to BAE Systems Information and Electronic Systems Integration Inc., Nashua, NH (US) | ||
| Filed by BAE Systems Information and Electronic Systems Integration Inc., Nashua, NH (US) | ||
| Filed on Jun. 10, 2019, as Appl. No. 16/436,197. | ||
| Int. Cl. H04K 3/00 (2006.01); G01S 7/02 (2006.01); G01S 7/38 (2006.01) | ||
| CPC H04K 3/45 (2013.01) [G01S 7/021 (2013.01); G01S 7/38 (2013.01); H04K 3/41 (2013.01); H04K 3/42 (2013.01); H04K 3/65 (2013.01); H04K 3/827 (2013.01)] | 23 Claims |
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1. A programmable radio frequency (RF) memory system, comprising:
a receiver configured to receive an RF pulse; a memory configured to store a digitized version of the RF pulse; a waveform transform module configured to
determine one or more characteristics of the digitized version of the RF pulse, and
based on the determined one or more characteristics, transform the digitized version of the RF pulse into a transformed signal, the transformed signal having at least one characteristic that is different than the one or more characteristics; wherein the digitized version of the RF pulse is transformed by:
copying the digitized version of the RF pulse to create one or more copies of the digitized version of the RF pulse,
adjusting a phase of one or more of the one or more copies of the digitized version of the RF pulse, and
stacking the one or more copies of the digitized version of the RF pulse upon each other to generate the transformed signal; and
a transmitter configured to transmit an analog equivalent of the transformed signal, wherein the analog equivalent of the transformed signal and the received RF pulse are coherent. |